Determining the Dependence of Fire Parameters in a Cable Tunnel on its Characteristics

Abstract

In order to study the parameters of fires in cable tunnels both experimental methods and numerical simulations are used. The purpose of this article was to determine the dependences of the maximum temperature inside the cable tunnel during a fire, the duration of the fire in a local area of the cable tunnel and the time of reaching the maximum temperature inside the cable tunnel during a fire on its characteristics (cross-sectional area of the cable tunnel, fire load) inside the tunnel. In the course of the research a complete factorial experiment was developed and conducted. According to its results, the required regressions were obtained. Thus, there are reasons to believe that the obtained results of the study are the basis for the creation of mathematical models that describe fires in cable tunnels and can be used for engineering assessment of fire resistance of cable tunnel structures. In addition, computer simulation of heat and mass transfer in case of fire in cable tunnels was further developed.